If you have a complex configuration you are doing it wrong... Spend some time thinking about you really want and turn it into a simple key-value setup. JSON s

If you have a complex configuration you are doing it wrong... Spend some time thinking about you really want and turn it into a simple key-value setup. JSON should feel like it is overpowered and bloated for your needs. (I'd still use JSON because you can find a parser and editor that can handle it, but it should feel overpowered for your needs)